/* * Written by J.T. Conklin <jtc@netbsd.org>. * Public domain. */ #include <machine/asm.h> RCSID("$NetBSD: s_floorf.S,v 1.4 2001/06/19 00:26:30 fvdl Exp $") ENTRY(floorf) #ifdef __i386__ subl $8,%esp fstcw 4(%esp) /* store fpu control word */ movw 4(%esp),%dx orw $0x0400,%dx /* round towards -oo */ andw $0xf7ff,%dx movw %dx,(%esp) fldcw (%esp) /* load modfied control word */ flds 12(%esp); /* round */ frndint fldcw 4(%esp) /* restore original control word */ addl $8,%esp #else movss %xmm0, -4(%rsp) fstcw -8(%rsp) movw -8(%rsp),%dx orw $0x0400,%dx andw $0xf7ff,%dx movw %dx,-12(%rsp) fldcw -12(%rsp) fldl -4(%rsp) frndint fldcw -8(%rsp) fstpl -4(%rsp) movss -4(%rsp),%xmm0 #endif ret